Tube head



FIG. 1 is a front elevational view of a tube head embodying our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines in the figures represent one possible tube. They are shown for illustrative purposes only and form no part of the claim. 

The ornamental appearance for a tube head, as shown and described. 